OCTOPIANUS SILABAN, Irwan; 						SATYA KUMARA, I Nyoman; 						SETIAWAN, I Nyoman.
 PERANCANGAN PLTS ATAP PADA GEDUNG KANTOR BUPATI TAPANULI UTARA DENGAN ARSITEKTUR RUMAH ADAT BATAK TOBA.
<strong>Jurnal SPEKTRUM</strong>, [S.l.], v. 8, n. 2, p. 270-280, july 2021.
ISSN 2684-9186.
Available at: &lt;<a href="http://103.29.196.112/index.php/spektrum/article/view/77173" target="_new">http://103.29.196.112/index.php/spektrum/article/view/77173</a>&gt;. Date accessed: 16 dec. 2025.
doi: <a href="https://doi.org/10.24843/SPEKTRUM.2021.v08.i02.p31">https://doi.org/10.24843/SPEKTRUM.2021.v08.i02.p31</a>.